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MNSU CIS440 Fall 2020 Quiz 3

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Quiz 3 given in CIS 440 at Minnesota State University, Mankato in Fall 2020.
Kyle Peterson
Quiz by Kyle Peterson, updated more than 1 year ago
Kyle Peterson
Created by Kyle Peterson almost 4 years ago
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Resource summary

Question 1

Question
The special operator used to check whether an attribute value matches a given string pattern is __________.
Answer
  • BETWEEN
  • IS NULL
  • LIKE
  • IN

Question 2

Question
The SQL aggrergate function that gives the number of rows containing non-null values for a given column is ____________.
Answer
  • MIN
  • MAX
  • SUM
  • COUNT

Question 3

Question
Which one of the following will be useful if there is a need to step through rows forward and backward?
Answer
  • Stored Procedure
  • Cursor
  • Trigger
  • Index

Question 4

Question
Which one of the following is essentially virtual tables?
Answer
  • Cursor
  • View
  • Trigger
  • Stored Procedure

Question 5

Question
You can use a stored procedure that returns information from base tables that you do not have permission on.
Answer
  • True
  • False

Question 6

Question
The WITH ENCRYPTION clause of the CREATE VIEW statement
Answer
  • prevents users from modifying the view.
  • prevents users from seeing the code the defines the view.
  • prevents users from using the view without the appropriate authorization.
  • causes the data that's returned by the view to be encrypted.

Question 7

Question
The statement CREATE VIEW Example4 AS SELECT * FROM Invoices JOIN Vendors ON Invoices.VendorID = Vendors.VendorID WHERE InvoiceTotal - PaymentTotal - CreditTotal > 0;
Answer
  • will create an updatable view
  • will create a read-only view
  • will create a view through which you can update or insert rows, but not delete rows
  • will fail because the SELECT statement returns two columns named VendorID

Question 8

Question
A table that's used to create a view is called
Answer
  • a view table
  • a temporary table
  • a base table
  • an OFFSET table

Question 9

Question
Each of the following is a benefit provided by using views except for one. Which one is it?
Answer
  • You can simplify data retrieval by hiding multiple join conditions.
  • You can provide secure access to data by creating views that provided access only to certain columns and rows.
  • You can create a view that simplifies data insertion by hiding a complex INSERT statement within the view.
  • You can create custom views to accommodate different needs.

Question 10

Question
A view
Answer
  • is like a virtual table
  • consists only of the rows and columns specified in its CREATE VIEW statement
  • doesn't store any data itself
  • All of the above (a, b, and c)
  • Only statements a and b are correct
  • Only statements a and c are correct

Question 11

Question
The statement CREATE VIEW Example1 AS SELECT VendorName, SUM(InvoiceTotal) AS SumOFInvoices FROM Vendors JOIN Invoices ON Vendors.VendorID = Invoices.VendorID GROUP BY VendorName ORDER BY VendorName;
Answer
  • will fail because the GROUP BY clause isn't allowed in this view
  • will fail because the column alias SumOfInvoices is invalid
  • will fail because the ORDER BY clause isn't allowed in this view
  • will succeed

Question 12

Question
If you delete a stored procedure, function, or trigger and then create it again
Answer
  • you delete the tables on which the object is based
  • you disable access to the tables on which the object is based
  • you delete the security permissions assigned to the object
  • none of the above

Question 13

Question
Each of the following statements about triggers is true except for one. Which one?
Answer
  • A trigger can't be directly called or invoked.
  • A trigger doesn't accept input or return output parameters.
  • A trigger can have more than one batch.
  • The code of a trigger can execute in place of the action query to which it's assigned.

Question 14

Question
Which statement can you use to manually raise an error within a stored procedure?
Answer
  • THROW
  • ERROR
  • TRY
  • RAISE

Question 15

Question
Which of the following statements calls the stored procedure and passes the values '2019-10-01' and 122 to its input parameters/ CREATE PROC spInvoiceTotal1 @DateVar smalldatetime @VendorID int AS SELECT SUM(InvoiceTotal) FROM Invoices WHERE VendorID = @VendorID AND InvoiceDate >= @DateVar;
Answer
  • SELECT spInvoiceTotal1 @VendorID = 122, @DateVar = '2019-10-01';
  • CREATE spInvoiceTotal1 @VendorID = 122, @DateVar = '2019-10-01';
  • EXEC spInvoiceTotal1 @VendorID = 122, @DateVar = '2019-10-01';
  • none of the above

Question 16

Question
A user-defined function
Answer
  • can return a single scalar value or a single table value
  • can return multiple scalar values or a single table value
  • can return multiple scalar values or a multiple table values
  • can't accept input parameters

Question 17

Question
Which statement can you use to control the flow of execution based on a true/false condition?
Answer
  • IF...ELSE
  • BEGIN...END
  • TRY...CATCH
  • EXEC

Question 18

Question
Given the following statements that declare a local variable and set its value, which of the following will cause an error? DECLARE @Example1 varchar(128); SET @Example1 = 'Invoices';
Answer
  • IF @Example1 = 'Invoices' SELECT* FROM Invoices
  • PRINT 'Table name is: ' + @Example1;
  • SELECT * FROM @Example1;
  • SELECT * FROM sys.tables WHERE name = @Example1;

Question 19

Question
When passing a list of parameters to a stored procedure by name, you can omit optional parameters by
Answer
  • omitting the parameter name and value from the list
  • inserting an extra comma
  • declaring the optional parameters after the required parameters
  • using the OUTPUT keyword

Question 20

Question
A cursor that is sensitive to updates and deletes to the source data, but insensitive to insertions:
Answer
  • dynamic
  • static
  • forward-only
  • keyset-driven
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